Most people would say Hef has been kept looking young by the flock of beautiful young women who constantly surround him.

But we think we have the real answer.

In a new interview with the Playboy Mansion's executive chef William S. Bloxsom-Carter, Bloomberg finds out Hef's daily diet.

"He enjoys lamb chops, and he has half a grapefruit every day," says Carter. He likes fried chicken with mashed potatoes, which is his mother's recipe. He's a Midwestern gentleman, so he enjoys those kinds of foods. He has two piles of mashed potatoes with a poached egg placed in each one. Pretty wild stuff but it's OK."

A half a grapefruit every day? We think the nutrient-packed fruits are Hef's secret to longevity.

So what do the Playboy bunnies eat?

Says Carter:

"We try to make them healthy. It doesn't always work out. They want the cheesecake with the strawberries on top but it's a lot of fun and it's a wonderful time for me and my staff."